The vertex is at (2, 5).
To find the vertex, we first find the axis of symmetry; this is given by
x = -b/2a
For our equation, b = -16 and a = 4:
x = -(-16)/2(4) = 16/8 = 2
We substitute this back into our equation:
y = 4(2)² - 16(2) + 21 = 4(4) - 32 + 21 = 5
Therefore the vertex is at (2, 5).
28 is not a cube, and 63 is not a square. The simplest form is the form you have.
![\sqrt[3]{28}-\sqrt{63}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B28%7D-%5Csqrt%7B63%7D)
It 730 because when you round to the nearest ten its 740
So 10 more will make it 740
Answer:
2.4 makes it true!
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Step-by-step explanation:
Answer:
4.2 miles
Step-by-step explanation:
Using the pythagorean theorem, a^2 + b^2 = c^2
youll get 3.6^2 + 2.2^2 = 17.8
sqrt of 17.8 = 4.2
